I have a few Android resources to share. I'll shamelessly begin by plugging a pair of articles I wrote last year for my website ... I wrote these two articles to get started with Android in a command-line context:
Hello, Android!, my first Android article, talks about installing the Android SDK (version 1.6), presents a very simple command-line-oriented Hello, Android! app, and shows how to create, install, and run this app.
Android Activity Lifecycle, my second Android article, presents an overview of an activity's lifecycle followed by a small app that demonstrates this lifecycle.
Additionally, I've found the following resources to be helpful:
This is only the beginning and a Google Search should reveal many more helpful resources.
By the way, you might want to periodically check out my own website (http://javajeff.mb.ca) as I'll be posting additional Android content in the coming months. The main page presents the most current blog post; you can access the entire blog (to review previous blog posts) by clicking the blog link in the "Commenting directly to the blog is not supported. Please email your comments to me instead." message that follows a blog post.